Taidoor Malware


Taidoor is a dangerous new malware program of the Trojan horse variety that uses stealth and disguise to enter people’s computers. Threats like Taidoor are known for their versatility and ability to operate in silence, without being spotted by the victim.

Taidoor Malware

The Taidoor Malware has been used during recent security breaches by Chinese government hackers.

One of the key reasons that make such new Trojan infections so difficult to detect before they complete their malicious job has to do with the lack of proper detection for them. Older Trojan versions can typically be picked up by most conventional antivirus solutions but when it comes down to a newer threat like Taidoor, the chances of spotting the infection in time are significantly diminished. This stems from the fact that the most common detection method that most antiviruses use is the database one. An antivirus program’s database is what allows it to detect and stop most incoming threats. Once the details of the virus are added to the database, this allows the security program to quickly recognize the attacking malware and neutralize it with ease. However, new infections like Taidoor take some time before they get added to those databases, and until that moment, detecting them is made much less likely. Some more advanced antivirus programs offer alternative detection methods for when a given potential threat is not yet in their database. For example, they may look for malware behavioral patterns in potential threats and use this as a way of spotting malware. However, those alternative methods are typically far less effective, which means that attacks from new viruses (also known as zero-day attacks) are highly likely to be successful and to remain undetected for long periods of time.

Are there any visible symptoms?

If you are here because you think Taidoor may be in your computer, you’ve likely already noticed some of its potential symptoms. Even though most of the time Trojan viruses are good at covering their tracks and not showing any obvious signs of their presence, there are still a number of possible indications that there may be such a virus in the computer.

One big example are the dreaded BSOD (Blue Screen of Death) crashes. Those blue error screens that occur after a system crash could be due to all kinds of problems with your computer but it is certainly possible that one of these potential problems is a Trojan horse attack.

Similarly, screen freezes, system slowness, program errors, software and data corruption, as well as other similar disturbances are also possible Trojan horse signs. In addition, if you notice any unauthorized changes in your system settings or in the setting soft the browser, this, too, could indicate there’s a Trojan like Taidoor, Wup.exe, HostsFileHijack in the computer.

Taidoor damage

As we mentioned at the start of this post, threats like Taidoor are typically very versatile so its difficult to tell their exact goal in each infection instance. Still, the most common ways in which such Trojans are used are to take over the attacked machine and use all of its resources for spam distribution or cryptocurrency mining or to gather sensitive data from the machine and use it for blackmailing or banking theft. Additionally, some Trojans are employed as distribution tools for Ransomware cryptoviruses so if Taidoor is on your computer, it’s possible that there is also Ransomware as well in the system. Instructions on how you can manually remove the threat will be shown to you in the following removal guide.


Name Taidoor
Type Trojan
Danger Level  High (Trojans are often used as a backdoor for Ransomware)
Symptoms  Trojans can sometimes cause different forms of system disruptions, including software errors, data corruption, blue screen crashes, and more.
Distribution Method  The preferred distribution methods used by the creators of Trojan horse malware is to spread the virus via spam letters or to upload it to file-sharing sites and disguise it as a free helpful program.
Detection Tool

Remove Taidoor Malware

If you are looking for a way to remove Taidoor you can try this:

  1. Click on the Start button in the bottom left corner of your Windows OS.
  2. Go to Control Panel -> Programs and Features -> Uninstall a Program.
  3. Search for Taidoor and any other unfamiliar programs.
  4. Uninstall Taidoor as well as other suspicious programs.

Note that this might not get rid of Taidoor completely. For more detailed removal instructions follow the guide below.

If you have a Windows virus, continue with the guide below.

If you have a Mac virus, please use our How to remove Ads on Mac guide.

If you have an Android virus, please use our Android Malware Removal guide.

If you have an iPhone virus, please use our iPhone Virus Removal guide

Taidoor Malware

Some of the steps will likely require you to exit the page. Bookmark it for later reference.

Reboot in Safe Mode (use this guide if you don’t know how to do it).

Taidoor Malware


Press CTRL + SHIFT + ESC at the same time and go to the Processes Tab. Try to determine which processes are dangerous. 

Taidoor Malware

Right click on each of them and select Open File Location. Then scan the files with our free online virus scanner:

Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
This scanner is free and will always remain free for our website's users.
This file is not matched with any known malware in the database. You can either do a full real-time scan of the file or skip it to upload a new file. Doing a full scan with 64 antivirus programs can take up to 3-4 minutes per file.
Taidoor Malware
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Taidoor Malware
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    After you open their folder, end the processes that are infected, then delete their folders. 

    Note: If you are sure something is part of the infection – delete it, even if the scanner doesn’t flag it. No anti-virus program can detect all infections. 

    Taidoor Malware

    Hold together the Start Key and R. Type appwiz.cpl –> OK.

    Taidoor Malware

    You are now in the Control Panel. Look for suspicious entries. Uninstall it/them. If you see a screen like this when you click Uninstall, choose NO:

    Taidoor Malware

    Taidoor Malware

    Type msconfig in the search field and hit enter. A window will pop-up:

    Taidoor Malware

    Startup —> Uncheck entries that have “Unknown” as Manufacturer or otherwise look suspicious.

    • Remember this step – if you have reason to believe a bigger threat (like ransomware) is on your PC, check everything here.

    Hold the Start Key and R –  copy + paste the following and click OK:

    notepad %windir%/system32/Drivers/etc/hosts

    A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

    Taidoor Malware

    If there are suspicious IPs below “Localhost” – write to us in the comments.

    Taidoor Malware

    Type Regedit in the windows search field and press Enter.

    Once inside, press CTRL and F together and type the virus’s Name. Right click and delete any entries you find with a similar name. If they don’t show up this way, go manually to these directories and delete/uninstall them:

    • HKEY_CURRENT_USER—-Software—–Random Directory. It could be any one of them – ask us if you can’t discern which ones are malicious.
      HKEY_CURRENT_USER—-Software—Microsoft—-Windows—CurrentVersion—Run– Random
      HKEY_CURRENT_USER—-Software—Microsoft—Internet Explorer—-Main—- Random

    If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!


    About the author


    Brandon Skies

    Brandon is a researcher and content creator in the fields of cyber-security and virtual privacy. Years of experience enable him to provide readers with important information and adequate solutions for the latest software and malware problems.

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